package lab4;

import java.io.IOException;

import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

/**
 * Servlet implementation class QuizCareerTestServlet
 */
@WebServlet("/lab4/QuizCareerTestServlet")
public class QuizCareerTestServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doGet(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		HttpSession session = request.getSession();
		QuizTest quizTest = (QuizTest) session.getAttribute("quizTest");

		String nextPage = "Start.jsp";
		if (request.getParameter("next") != null) {
			int choose;
			try {
				choose = Integer.parseInt(request.getParameter("choose"));
				System.out.println(choose);
			} catch (NumberFormatException e) {
				choose = -1;
			}
			if (choose == -1) {
				nextPage = "Again.jsp";
			} else {
				quizTest.nextAction(choose);
				if (quizTest.hasMoreQuestions()) {
					quizTest.nextQuestion();
				} else {
					Conclusion conclusion = quizTest.getConclusionWhenDone();
					request.setAttribute("conclusion", conclusion);
					nextPage = "Done.jsp";
				}
			}
		}

		if (request.getParameter("startAgain") != null) {
			quizTest.reset();
		}
		request.getRequestDispatcher(nextPage).forward(request, response);

	}

	/**
	 * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse
	 *      response)
	 */
	protected void doPost(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		doGet(request, response);
	}

}
